Large-dip-angle coal seam gob-side entry retaining gob-side waste rock blocking supporting structure and construction method
The invention relates to a large-dip-angle coal seam gob-side entry retaining gob-side gangue retaining supporting structure and a construction method, belongs to the technical field of gob-side entry retaining coal pillar-free mining, and solves the problem that normal use of a roadway is affected...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a large-dip-angle coal seam gob-side entry retaining gob-side gangue retaining supporting structure and a construction method, belongs to the technical field of gob-side entry retaining coal pillar-free mining, and solves the problem that normal use of a roadway is affected due to insufficient roadside support of an existing large-dip-angle coal seam. The large-dip-angle coal seam gob-side entry retaining gob-side waste rock retaining supporting structure comprises a rigid waste rock retaining structure and a flexible waste rock retaining structure, the rigid waste rock retaining structure comprises a waste rock retaining beam, an I-shaped tray and an anchor rod, the flexible waste rock retaining structure comprises a waste rock retaining steel wire rope, and the waste rock retaining beam and the I-shaped tray are locked through a beam locking steel wire rope and the waste rock retaining steel wire rope. The cooperative gangue blocking effect of the gangue blocking beam, the anchor ro |
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